Support for allocation of TLS variables in the JIT. Allocation of a global

variable is moved to the execution engine. The JIT calls the TargetJITInfo
to allocate thread local storage. Currently, only linux/x86 knows how to
allocate thread local global variables.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58142 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ExecutionEngine/ExecutionEngine.h

@@ -76,6 +76,9 @@ protected:
   void setTargetData(const TargetData *td) {
     TD = td;
   }
+  
+  /// getMemoryforGV - Allocate memory for a global variable.
+  virtual char* getMemoryForGV(const GlobalVariable* GV);
 
   // To avoid having libexecutionengine depend on the JIT and interpreter
   // libraries, the JIT and Interpreter set these functions to ctor pointers